/**
 * Copyright (c) 2018-2028, Chill Zhuang 庄骞 (smallchill@163.com).
 *
 * <p>Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0; you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 *
 * <p>http://www.gnu.org/licenses/lgpl.html
 *
 * <p>Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package xyz.fivefaith.tool.common.domain.api;

import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;

import org.jetbrains.annotations.Nullable;

import xyz.fivefaith.tool.common.constant.SysConst;
import xyz.fivefaith.tool.common.domain.base.IBaseEnum;
import xyz.fivefaith.tool.common.domain.enums.ResultCode;
import xyz.fivefaith.tool.common.util.Kit;

import java.io.Serializable;
import java.util.Optional;

/**
 * 统一API响应结果封装
 *
 * @author Chill
 */
@SuppressWarnings("AlibabaClassNamingShouldBeCamel")
@Getter
@Setter
@ToString
@NoArgsConstructor
public class R<T> implements Serializable {

    private static final long serialVersionUID = 1L;

    private int code;
    private boolean success;
    private T data;
    private String msg;

    private R(IBaseEnum resultCode) {
        this(resultCode, null, resultCode.getMessage());
    }

    private R(IBaseEnum resultCode, String msg) {
        this(resultCode, null, msg);
    }

    private R(IBaseEnum resultCode, T data) {
        this(resultCode, data, resultCode.getMessage());
    }

    private R(IBaseEnum resultCode, T data, String msg) {
        this(resultCode.getCode(), data, msg);
    }

    private R(int code, T data, String msg) {
        this.code = code;
        this.data = data;
        this.msg = msg;
        this.success = ResultCode.SUCCESS.getCode() == code;
    }

    /**
     * 判断返回是否为成功
     *
     * @param result Result
     * @return 是否成功
     */
    public static boolean isSuccess(@Nullable R<?> result) {
        return Optional.ofNullable(result)
                .map(x -> Kit.nullSafeEquals(ResultCode.SUCCESS.getCode(), x.code))
                .orElse(Boolean.FALSE);
    }

    /**
     * 判断返回是否为成功
     *
     * @param result Result
     * @return 是否成功
     */
    public static boolean isNotSuccess(@Nullable R<?> result) {
        return !R.isSuccess(result);
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data) {
        return data(data, SysConst.DEFAULT_SUCCESS_MESSAGE);
    }

    /**
     * 返回R
     *
     * @param data 数据
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> data(T data, String msg) {
        return data(ResultCode.SUCCESS.getCode(), data, msg);
    }

    /**
     * 返回R
     *
     * @param code 状态码
     * @param data 数据
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> data(int code, T data, String msg) {
        return new R<>(code, data, data == null ? SysConst.DEFAULT_NULL_MESSAGE : msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> success(String msg) {
        return new R<>(ResultCode.SUCCESS, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IBaseEnum resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> success(IBaseEnum resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 返回R
     *
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(String msg) {
        return new R<>(ResultCode.FAILURE, msg);
    }

    /**
     * 返回R
     *
     * @param code 状态码
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(int code, String msg) {
        return new R<>(code, null, msg);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IBaseEnum resultCode) {
        return new R<>(resultCode);
    }

    /**
     * 返回R
     *
     * @param resultCode 业务代码
     * @param msg 消息
     * @param <T> T 泛型标记
     * @return R
     */
    public static <T> R<T> fail(IBaseEnum resultCode, String msg) {
        return new R<>(resultCode, msg);
    }

    /**
     * 返回R
     *
     * @param flag 成功状态
     * @return R
     */
    public static <T> R<T> status(boolean flag) {
        return flag
                ? success(SysConst.DEFAULT_SUCCESS_MESSAGE)
                : fail(SysConst.DEFAULT_FAILURE_MESSAGE);
    }
}
